P-172L: Late-News Poster: Highly Stable Integrated Gate Driver Circuit using a-Si TFT with Dual Pull-down Structure

Yoon, Soo Young; Jang, Young-Soo; Kim, Binn; Chun, Min Doo; Cho, Hyung Nyuck; Cho, Nam Wook; Sohn, Choong Yong; Jo, Sung Hak; Kim, Chang‐Dong; Chung, In‐Jae

doi:10.1889/1.2036443

Cited by 52 publications

(25 citation statements)

References 3 publications

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“…6. The low gate voltage level of the proposed gate driver is lower than that of the conventional gate driver during the transient of the gate output signal [17]. Fig.…”

Section: Operation Of Proposed Gate Drivermentioning

confidence: 89%

“…In the condition with the same falling time of gate signal, the size of the proposed gate driver is smaller than that of conventional gate driver. The sizes of the proposed circuit are summarized in Table I and the comparison of the layout between the conventional gate driver [17] and the proposed gate driver is shown in Fig. 12.…”

Section: Effect Of the Proposed Gate Drivermentioning

confidence: 99%

See 1 more Smart Citation

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Kim

Chae²,

Jo³

et al. 2014

J. Display Technol.

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This paper presents a new 2D-3D switchable driving method for a 3D thin-film transistor liquid crystal display (TFT-LCD) TV. The proposed driving method, which uses a film-type patterned retarder (FPR), can reduce unnecessary power consumption while displaying 2D images. The proposed driving method can change a part of a pixel according to the driving mode; the part is operated as a black matrix in a 3D display mode, whereas in a 2D display mode, the part is operated as a normal pixel. To realize the proposed driving method without increasing the data signal rates, the number of gate driver integrated circuits (ICs), and the bezel size of the panel, a novel pixel structure and an integrated a-Si:H gate driver, which can be implemented in a small size, are developed. The power consumption of the proposed driving method measured at the full white gray level is 67 W in a 47-in full-high-definition (FHD) TFT-LCD TV. This result shows that the power consumption of the proposed driving method decreases by 28% compared with that of the conventional driving method in the 2D display mode.Index Terms-2D-3D switchable driving, 3D TV, film-type patterned retarder (FPR), integrated a-Si:H gate driver, power consumption.

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“…6. The low gate voltage level of the proposed gate driver is lower than that of the conventional gate driver during the transient of the gate output signal [17]. Fig.…”

Section: Operation Of Proposed Gate Drivermentioning

confidence: 89%

Section: Effect Of the Proposed Gate Drivermentioning

confidence: 99%

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Kim

Chae²,

Jo³

et al. 2014

J. Display Technol.

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show abstract

“…Hydrogenated amorphous silicon (a‐Si:H) is widely used in active‐matrix liquid‐crystal displays (LCDs) and peripheral driver circuits because it has high uniformity and low cost of the fabrication. Recently, the integration of gate drivers with the a‐Si:H TFTs on glass substrates provides many advantages, including improvement on compactness and reliability, reduction in the cost by eliminating external driver integrated circuits (ICs) and related bonding connections, and simplification of data driver configuration …”

Section: Introductionmentioning

confidence: 99%

“…Recently, the integration of gate drivers with the a-Si:H TFTs on glass substrates provides many advantages, including improvement on compactness and reliability, reduction in the cost by eliminating external driver integrated circuits (ICs) and related bonding connections, and simplification of data driver configuration. [1][2][3][4][5][6][7][8][9][10][11][12][13][14] However, the design of the gate driver using a-Si:H thin-film transistor (TFT) is confronted with some difficulties such like long-term stress degradation, low-effect field mobility, and the lack of a P-type transistor to build the complementary metal-oxide-semiconductor (CMOS) structure. For the high resolution display application, the thousands micrometer width of the main driving TFT is required to drive the gate line of the panel; the modification results in widening the bezel of panel.…”

Section: Introductionmentioning

confidence: 99%

Multioutputs single‐stage gate driver on array with wide temperature operable thin‐film‐transistor liquid‐crystal display for high resolution application

2018

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A hydrogenated amorphous silicon (a‐Si:H) thin‐film transistor (TFT) gate driver with multioutputs (eight outputs per stage) for high reliability, 10.7‐inch automotive display has been proposed. The driver circuit is composed of one SR controller, eight driving TFTs (one stage to eight outputs) with bridging TFTs. The SR controller, which starts up the driving TFTs, could also prevent the noise of gate line for nonworking period. The bridging TFT, using width decreasing which connects between the SR controller and the driving TFT, could produce the floating state which is beneficial to couple the gate voltage, improves the driving ability of output, and reaches consistent rising time in high temperature and low temperature environment. Moreover, 8‐phase clocks with 75% overlapping and dual‐side driving scheme are also used in the circuit design to ensure enough charging time and reduce the loading of each gate line. According to lifetime test results, the proposed gate driver of 720 stages pass the extreme temperature range test (90°C and −40°C) for simulation, and operates stably over 800 hours at 90°C for measurement. Besides, this design is successfully demonstrated in a 10.7‐inch full HD (1080 × RGB×1920) TFT‐liquid‐crystal display (LCD) panel.

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“…Displays for portable electronic devices require high resolution, light‐weight, and low power consumption. Therefore, the integrated gate driver using amorphous silicon (a‐Si) technology for the thin‐film‐transistor liquid‐crystal display (TFT‐LCD) has become the main stream because of the mature manufacturing, low‐cost processing, and elimination of the gate driver ICs . Nevertheless, design of the integrated gate driver by a‐Si encounters three main challenges, which are the low field‐effect mobility, low reliability issue under high voltage stress, and the lack of P‐type transistor.…”

Section: Introductionmentioning

confidence: 99%

Design of dual‐outputs‐single‐stage a‐Si:H TFT gate driver for high resolution TFT‐LCD application

Zheng

Liu

2016

J Soc Info Display

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A new gate driver has been designed and fabricated by amorphous silicon technology. With utilizing the concept of sharing the noise free block in a single stage for gate driver, dual‐outputs signals could be generated in sequence. By increasing the number of output circuit block in proposed gate driver, number of outputs per stage could also be adding that improves the efficiency for area reduction. Besides, using single driving thin‐film‐transistor (TFT) for charging and discharging, the area of circuit is also decreased by diminishing the size of pulling down TFT. Moreover, the proposed gate driver has been successfully demonstrated in a 5.5‐inch Full HD (1080xRGBx1920) TFT‐liquid‐crystal display panel and passed reliability tests of the supporting foundry.

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P-172L: Late-News Poster: Highly Stable Integrated Gate Driver Circuit using a-Si TFT with Dual Pull-down Structure

Cited by 52 publications

References 3 publications

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

A 2D-3D Switchable Driving Method for Reducing Power Consumption of Thin-Film Transistor Liquid Crystal Display TV With Film-Type Patterned Retarder

Multioutputs single‐stage gate driver on array with wide temperature operable thin‐film‐transistor liquid‐crystal display for high resolution application

Design of dual‐outputs‐single‐stage a‐Si:H TFT gate driver for high resolution TFT‐LCD application

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